let R() = stdin.ReadLine()
let swapStr (str:string) a b = 
    let i = min a b 
    let j = max a b
    let l = str.Length
    str.[0 .. i-1] 
    + str.[j   ..   j] 
    + str.[i+1 .. j-1]
    + str.[i   .. i  ]
    + str.[j+1 .. l-1]


let str = R()
let i,j = let t = R().Split() |> Array.map int in t.[0], t.[1]

swapStr str i j |> stdout.WriteLine